2020 Chevrolet Express Fuel system Problems
- Complaints
- 1about this part
- Share
- 6%of 17 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the fuel system of the 2020 Chevrolet Express, 6% of the 17 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The vehicle is experiencing an under-chassis manufacturing wiring harness restriction (Connector X185) that was installed too tightly from the factory, dropping the 5-volt reference power circuit down to 0 volts under load. This intermittent electrical failure completely starves the fuel pump, causing the fuel loop pressure to drop to a dangerous 43.5 PSI while driving (GM factory specification is 55–100 PSI). This electrical breakdown simultaneously chokes the fuel tank vapor loops, causing the fuel tank pressure to spike to an extreme -1100 vacuum pressure parameter. …”
NHTSA complaint #11766626, filed 2026-09Related service bulletins
- 11017173Mar 21, 2025This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.
- 11007095Aug 7, 2024This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles…
- 11006604Aug 3, 2024This service bulletin provides service information for customer concerns of an in-tank fuel pump whining noise, engine hard to start and/or stalls and Malfunction Indicator Lamp…
- 11006377Jul 23, 2024This informational bulletin explains the difference in AFM and DFM engines and what is and is not activated during this occurrence.
- 11004727Jun 29, 2024This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
- 11004761Jun 28, 2024This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or…
- 11004934Jun 26, 2024This technical bulletin provides repair information to correct a customer concern of Check Engine Lamp Illuminated with DTC P026D Set, Engine LWN Controller E98 Update.
- 10253061Mar 4, 2024This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel…
- 10250505Feb 7, 2024This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2021 | 4 | 31% |
| 2020 | 1 | 6% |
| 2016 | 1 | 7% |
| 2015 | 1 | 13% |
| 2014 | 4 | 29% |
| 2013 | 4 | 18% |
| 2012 | 2 | 15% |
| 2011 | 3 | 25% |
| 2010 | 1 | 7% |
| 2008 | 2 | 14% |
| 2005 | 2 | 9% |
| 2004 | 4 | 19% |
| 2003 | 11 | 19% |
| 2002 | 5 | 9% |
| 2001 | 5 | 11% |
| 2000 | 5 | 6% |
| 1999 | 1 | 1% |
| 1998 | 2 | 9% |
| 1997 | 3 | 10% |
| 1996 | 3 | 20% |
Other parts of the 2020 Chevrolet Express
9 complaintsElectrical system
3 complaintsEngine
3 complaintsBody and structure
3 complaintsBrakes
2 complaintsOther or unknown
2 complaints
← All problems reported for the 2020 Chevrolet Express
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology